Finding the Fourth Proportional to 438,657.78, 658,229.97 and 214,020.06
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Solution
The fourth proportional to 438,657.78, 658,229.97 and 214,020.06 is: 321,148.80
Step by Step Solution
- Step 1: Write the proportion equation
438,657.78 : 658,229.97 = 214,020.06 : x - Step 2: Convert to fraction form
438,657.78/658,229.97 = 214,020.06/x - Step 3: Cross multiply
438,657.78x = 658,229.97 × 214,020.06 - Step 4: Simplify right side
438,657.78x = 140,874,417,673.20 - Step 5: Solve for x
x = 140,874,417,673.20/438,657.78 - Step 6: Final answer
x = 321,148.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.